28264008 has 16 divisors (see below), whose sum is σ = 70660080. Its totient is φ = 9421328.

The previous prime is 28264007. The next prime is 28264021. The reversal of 28264008 is 80046282.

It is a happy number.

It is not an unprimeable number, because it can be changed into a prime (28264007) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 588810 + ... + 588857.

It is an arithmetic number, because the mean of its divisors is an integer number (4416255).

Almost surely, 2^28264008 is an apocalyptic number.

It is an amenable number.

28264008 is an abundant number, since it is smaller than the sum of its proper divisors (42396072).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

28264008 is a wasteful number, since it uses less digits than its factorization.

28264008 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1177676 (or 1177672 counting only the distinct ones).

The product of its (nonzero) digits is 6144, while the sum is 30.

The square root of 28264008 is about 5316.3905048444. The cubic root of 28264008 is about 304.6102986680.

The spelling of 28264008 in words is "twenty-eight million, two hundred sixty-four thousand, eight".